Lock



Patented Aug. 20, 1929.

UNITED STATES PATENT QFFIQE.

EiAMUEL SEGAL, OF NEW YORK, N. Y., ASSIGNOR T SEGAL LOCK & TELERDWARE COM- PANY, INC, OF NEW YORK, E. Y., A CQRPORATION OF NEW YGBK.

LOCK.

Application filed December This invention relates to a lock of improved construction.

It is an object of the invention to provide a lock of the rotary bolt type which will operate in an extremely desirable manner.

it a further object of the invention to furnish a mechanism for operating a bolt of a lock, which mechanism will likewise be relatively simple both in construction and operation, and which will be extremely efficient in the latter connection.

An additional object is that of providing a lock which will efliciently perform the purposes for which it is intended, and which will also be economically and readily manufactured and easily assembled.

@ther objects of the invention will in part be obvious and will in part appear hereinafter. i

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

Figure 1 is a partly sectional side elevation of one form of lock embodying the improved construction of the present invention, the cover-plate being removed to show the mechanism within the lock case, and the bolts, together with the operating mechanism therefor, being shown in retracted position;

Figs. 2 and 3 are views similar to Fig. 1, but show the parts partially and wholly projected. respectively;

Fig. 4 is a front view of the lock as shown in Fig. 1; and

5 a transverse sectional view taken ong the lines and in the direction of arrows in Fig. l; and ig. 6 is a fragmentary sectional view of certain of the operating mechanism.

In these views the reference numeral 10 indicates the lock case, which may be formed with outstrucl: lugs 11, by means of which it may be secured to the outer face of the door, it being noted that inwardly-extendin lugs 12 may also form part of this case for retaining a cover-plate 12' in posia th e ly-extending bores. Rotatably and slidably mounted within these bores are shafts 16, which, in the present instance, are of a length materially in excess of the'length of the bolt As a consequence, these shafts extend to both sides of the bolt. Adjacent one of their ends they carry heads 17, and their opposite ends are preferably reduced as at 18. The heads are oblong and of a. width and aggregate length not in excess of the width and length of a slot 19 formed in the forward edge of the lock case. Secured to the shafts 16, and preferably adjacent the rear and reduced ends 18 thereof are lugs and 21, the former in the normal and re tracted position of the parts lying adjacent and bearing against the inner edge of the track i while the latter lies adjacent, and may bear against the outer face of the lower flange 13. Both the flanges and tracks are interrupted by a slot 13 at a point substantially in line with the rear edge of the bolt when the latter is partially projected, so that it will be obvious that, while in the present instance the turning of the shafts 16 in a clockwise direction will normally be prevented, this turning may be etfected when the lugs 20 and 21 reach a position adjacent the slot 13.

The belt 15 is formed with slots 22 extending parallel to each. other and corresponding in number to the number of shafts used. These slots are disposed at an angle to the shaft axes, and at points inline with the slots the shafts are formed with openwithin which pins 23 are arranged in such a manner that they extend beyond the outer faces of the shafts and thus into contact with the side wallsof the slots. These pins, if desired, may be rotatable with respect to the shafts so that friction will be reduced to a minimum, it being obvious that if the dead-bolt is moved longitudinally with respect to the shaft body the latter will turn with respect to the bolt.

In order to provide a suitable form of mechanism for projecting and retracting the bolts a shaft may have a knob 24 secured to one of its ends, this shaft being rotatably mounted to extend through the lock case and carrying at its inner end a crank 25. A T-shaped member 26 is attached to the bolt 15 and has its head formed with a slot 27. The outer end of the crank is notched, as has been best shown in Fig. 3, and a pin is formed with a reduced portion 28 which seats within this notch, the pin being en larged at both sides of the crank and having a portion 29 riding within the slot 27. At a point beyond the member 26 this pin may be further enlarged as at 30, and at this point it is provided with a transverse here. The outer end of the pin body is recessed as at 31, an outwardly-extending annular flange 32 being thus provided, which is interrupted as at 33 for a purpose hereinafter brought out. In the present instance the lower end of the member 26 terminates in an outwardly-extending forked portion 34, and the shank'of a bolt 35 is positioned between the arms of this portion, the head 36 thereof bearing against the outer faces of these arms, as has been best shown in Fig. 6. This bolt slidably extends within a tubular casing 37, and the end of the bolt is enlarged as at 38. The casing extends through the transverse opening of the enlarged portion of the pin and has a head 39 which rides against the upper face of this pin, a spring 10 being interposed between the lower end of the casing and the enlargement of the bolt. As a consequence, it will be obvious that if the crank is rotated by the knob the portion 29 of the pin will ride within the slot 27 and thus project or retract the bolt 15. Also, due to the fact that the axes of the knobshaft and the pin extend not beyond a point where they are inter sected by a line extending at right angles to the longitudinal axes of the slot 27, it will be apparent that when the crank has been rotated to project the bolt it will be wellnigh impossible to force the latter rearwardly.

.. the slots 22 extend, and, furthermore, for

;the reason that a turning of the shafts 16 .is prevented, the heads 17 associated therewith will remain in their initial position. However, upon the parts being moved to a position beyond that shown in Fig. 2 it will likewise be apparent that the lug 21 will strike against the lower member 12, and thus this shaft will be prevented from being project-ed to a further extent. Likewise, the

lug 20 will strike a stop 29 and be prevented I from being projected to a further extent. -As a' consequence, the bolt 15, which may continue its projection, will move forwardly tors enter into'the problem of forcibly reand longitudinally with respect to the shafts 16. As a result the pins 23 will ride within the slots 22 and the shafts 16 will be turned so that the heads 17 will come to lie in the positions indicated by dotted lines in Fig. 1. At this point it will be found, as in Fig. 3, that the dead-bolt 15 will have moved to a position at which its forward edge lies immediately adjacent the rear faces of the heads 17. In retracting the parts, if the crank is turnen in a direction opposite to that afore specified, the lugs 20 and 21 will engage the forward edges of the interrupted flange and track-portions formed by the slot. As a consequence, the dead-bolt 15 will be retracted, while the shafts 16 turn incident to the slots 22 and pins 23. This will continue until the dead-bolt reaches a position such as that shown in Fig. 2, at which point the lugs 20 and 21 will clear the forward track and flange edges aforementioned, and the entire bolt assembly may be returned by continued rotation of the crank to the position shown in Fig. 1.

During the foregoing operation of the parts the pin riding within the slot of the member 26 will swivel within the crank 25, and the coacting unit provided by the telescoping members 35 and 37 will tend to maintain the parts in retracted or projected positions. Incidentally, the mouth of the recess 31, i. e., the interrupted portion 33 of the flange 32, will at all times extend in one direction. As a consequence, a key-operated mechanism may serve to project and retract the bolts.

It will be apparent that the parts last mentioned may be readily assembled prior to the association of the pins 23 with the shafts by simply moving the bolts to points beyond their normal projected position, at which time the inner end of the pin is inserted through the stot 27 and the reduced portion 28 thereof is guided into the notch the crank. Thereafter the bolt assembly may be retracted, and the pins 23 may be applied to the shafts 16. As a consequence, the pin will not become accidentally detached from the crank, and it will be obvious that this pin will also serve to hold the i'nember 26 against the crank, and, incidentally, will serve as a guide for the rear end of the bolt assemblage,it being apparent that as the inner end of the pin is slipped into position with respect to the crank the head 36 of the plate 35 is positioned as has been best shown in Fig. 6.

Referring to Fig. 5 it will be noted that, if desired, the lugs 20 and 21 may be formed with extended portions 20 and 21', respectively, which extended portions, when the parts are in the position shown in Fig. 3, may ride into slots A1 formed in the cover By this expedient three resistance factracting the bolt, to wit, first, the pin and slot connection formed by the crank, pin and member 26, respectively; secondly, the lugs 20 and 21 bearing against the flange and track ends; and, thirdly, the lugs 20 and 21 hearing against suitable portions of the cover-plate 12'.

It will be appreciated that, irrespective of the throwing mechanism utilized, a lock constructed within the terms of the present invention, and particularly according to the illustrated embodiment, will include mechanism whereby during the projection of the parts the dead and rotary bolts will move forward into the keeper as one unit, the rotary bolt will cease its forward movement, while the dead-bolt continues to be projected, and during this latter stage the rotar i belt or bolts will turn so that the heads thereof come to lie at an angle to the rear of a suitable ledge within the keeper. In connection with this keeper, which has not been illustrated, it will be understood that numerous suitable different forms may be employed, particularly according. to whether the look is of the mortise type or the type illustrated and according to the type of closure with which the lock is associated.

It will be understood that a lock embodythis construction will be positive in operation and will embody a simple construction so that it may be utilized over long periods of time without repair or replace- I ent. Incidentally, the shafts forming the bodies of the rotary bolts will be strongly braced with the dead-bolt fully projected, and it will be an extremely difficult matter to e'ti'ect a forcible retraction and unlocking ot' the parts. It will also be appreciated that the several units of the lock herewith shown may be interchangeably employed.

Thus, among others, the objects specifically mentioned have been accomplished, and since certain changes may be made in the above construction, and difi'erent embodiments of the invention could be made, without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative l not in a limiting sense.

and

is also to be understood that the following claims are intended to cover all of one unit, means for moving the same longi tudinally with respect to each other, and means for rotating said last-named bolt w'th respect to said first-named bolt.

2. A lock, including, in combination, a deadbolt, a rotary bolt carried thereby, means for projecting both of said bolts as one unit, means for limiting the projection of said rotary bolt, means for continuing the projection of said dead-bolt, and means for turning said rotary bolt with respect to said dead-bolt.

3. A look, including, in combination, a dead-bolt, a rotary bolt carried thereby means for projecting both of said belts as, one unit, means for limiting the projection oi said rotary bolt, means for continuing the projection of said dead-bolt, and means for turning said rotary bolt with respect to said dead-bolt during the continued projection of the latter.

4. A lock, including, in combination, a deadbolt, a headed rotary bolt carried thereby and being longitudinally movable with respect thereto, means for projecting and retracting said bolts, and means for turning said rotary bolt with respect to said deadbolt, the head of said rotary bolt being spaced from the forward edge of said deadbolt under certain conditions and being disposed adjacent thereto under other conditions. I V

5, A lock, including, in combination, a dead-bolt, a headed rotary bolt carried thereby and having its head spaced from the forward edge of said dead-bolt, means for projecting both of said bolts, means for preventing a projection of said rotary bolt beyond a certain point, and means for turning said latter bolt during the continued projection of said dead-bolt, the head of said rotary bolt being adjacent the forward edge of the dead-bolt upon the latter being fully projected.

6. A lock, including, in combination, a dead-bolt, a rotary bolt carried thereby, means for projecting said bolts, means for limiting the projecting of said rotary bolt, and means associated with said dead-bolt for effecting a turning of said rotary bolt during the continued projection oi the former.

7. A look, including, in combination, a rotary bolt, an actuating member arranged adjacent said bolt and being formed with a slot extending at an angle, a pin carried by said bolt and riding within said slot, means for projecting and retracting one of said elements, and means for limiting the movement of the other of the same whereby to effect a turning of said rotary bolt.v

8. A look, including, in combination, a

rotary bolt, an actuating member encircling a portion of said bolt and being formed with a slot extending at an angle, a pin carried by said bolt and riding within said slot, means for projecting said actuating member and bolt as one unit, and means for limiting the projecting of the bolt whereby upon the continued movement of said actuating mem ber said bolt will be turned.

9. A lock, including, in combination, a rotary bolt, an actuating member encircling a portion of said bolt and being formed with a slot extending at an angle, a pin rotatably carried by said bolt and riding Within said slot, means for projecting and retracting one of said elements, and means for limiting the movement of the other of the same whereby to effect a turning of said rotary bolt.

10. A lock, including, in combination, a dead-bolt, a rotary bolt carried thereby, means for projecting said bolts, a slot forming a part of one of said first-named elements and arranged at an angle to the direcion of projection, a pin associated with the second of said elements and riding within said slot, and means for limiting the projecting of said bolt whereby said pin and slot willcooperate to turn the latter during the continued projecting of said deadbolt.

11. A lock, including, in combination, a dead-bolt, a rotary bolt carried thereby, a pin associated with the latter and extending into a slot in the former, means for projecting said dead bolt, said slot being arranged at an angle to the direction of projection, and means for limiting the projecting of said rotary bolt whereby upon the continued projecting of said dead-bolt said rotary bolt will be turned.

12. A look, including, in combination, a projectable bolt, means associated with said bolt and formed with a slot extending at an angle to the direction of movement of said bolt, a crank, means for turning the same, and. a pin associated with said crank and riding within said slot.

13. A look, including, in combination, a projectable bolt, means associated with said bolt and formed with a slot extending at an angle to the direction of movement of said bolt, crank, means for turning the same, and a pin associated with said crank and riding within said slot, said parts being so arranged that said crank and pin axes may be intersected by a line disposed at an angle not in excess of a right angle with respect to a line defining the longitudinal axes of said slot.

14. A lock, including, in-combination, a bolt, a rockable crank, a pin associated with said crank and connected with said bolt whereby when the former is moved the latter will be projected and retracted, a pair of telescoping members, a spring urging the same into telescopic relationship, one of said members being connected with said pin, the other of said members being connected with a portion of said lock mechanism whereby said crank is normally restrained against movement.

1.5. A lock, including, in combination, a

bolt, means for projecting and retracting said bolt, a pin having recess formed in its outer end and adapted to be engaged by a key mechanism, said pin being connected with said bolt-actuating mechanism, and resilient means tending to retain said bolt in one of its two extreme positions and also retaining the'pin. recess in predetermined relationship with respect to the lock mechanism.

16; A lock, including, in combination, a belt, a crank, a pin having one of its ends associated withsaid crank and being formed with a recess in its opposite end, the walls of said recess being engageable with a key mechanism to operate said crank, said pin being formed with a transverse bore, and a resilient unit positioned within and extending beyond said bore, the end of said unit being connected with a portion of said lock mechanism whereby said crank is urged to assume one of two predetermined positions.

and the pin recess remains in predetermined relationship with respect to said lock mechanism.

17. A lock, including, in combination, a pair of bolts, means for projecting and retracting the same, means for turning the same axially, and a pair of lugs secured one,

to each of said bolts, said lock being formed with a pair of recesses engageable by each of said lugs to prevent a forcible retraction of said bolts.

18. A look, including, in combination, a dead-bolt, a rotary bolt longitudinally movable with respect thereto, means for projecting and retracting said bolts, means for turning said rotary bolt at right angles with respect to the direction of travel of said dead-bolt and a single means for actuating said projecting and retracting means and under continued operation effecting actuation of said rotary bolt.

19. A lock, including a bolt, an extension forming a part of said bolt and being formed with a slot, a crank, means forming a part of said crank and projecting into said. slot whereby when the former is rotated the bolt will be projected and retracted,and a spring having one of its ends connected to act against such extension, its opposite end being connected to act against said crank end.

In testimony whereof I afiix my signature.

SAMUEL SEGAL. 

